Re: [Xen-devel] Test for osstest, features used in Qubes OS

[Simon Gaiser <simon@xxxxxxxxxxxxxxxxxxxxxx>]

Jan Beulich:
>>>> On 23.05.18 at 00:21, <simon@xxxxxxxxxxxxxxxxxxxxxx> wrote:
>> I have done some more testing in the meantime. The issue also affect
>> 4.10.1, but not 4.10.0. That's useful since it makes the bisect shorter.
>> A bisect identifies 8462c575d9 "x86/xpti: Hide almost all of .text and
>> all .data/.rodata/.bss mappings" as the commit which breaks suspend.
>>
>> 8462c575d9 is a squashed backport of:
>>
>>   422588e885 x86/xpti: Hide almost all of .text and all .data/.rodata/.bss 
>> mappings
>>   d1d6fc97d6 x86/xpti: really hide almost all of Xen image
>>   044fedfaa2 x86/traps: Put idt_table[] back into .bss
>>
>> And indeed, reverting those on staging fixes suspend. (This also matches
>> the behavior that xpti=off fixes suspend as George already reported
>> earlier today).
> 
> Okay, that was quite helpful - I think I see now where I screwed up (i.e.
> the issue is in the middle of the three commits). Could you confirm that a
> Xen booted with "nosmp" suspends and resumes fine?

Yes, with nosmp suspend works.

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